Thumb Score: +19

Amazon [amazon.com] has 12-Pk 12-Oz C4 Performance Energy Drink (Frozen Bombsicle) 2 for $16.29.
Shipping is free with Prime or on $35+ orders.

Price
$42.93 lower (72% savings) than the one-time price of $59.22
$19.25 lower (54% savings) than the previous price of $35.54

Savings
Get 2 for the price of 1 (check and activate [amazon.com])